Marking of metallic extrusions of tubular or solid form



Oct. 6, 1936. wl ECKFQRD E-r V 2,056,897

MARKING OF METALLIC EXTRUSIONS OF TUBULAR OR SOLID FORM L q ma Wz'lm Ec/Vonk@ i MW 'fm ct 6, 1936. w. EcKFoRD ET AL 2,055,897

OF METALLIC EXTRUSIONS OF T'UBULAR OR SOLID FORM Filed Dec. 11, 1934 2 sheets-sheet 2 MARKING Patented Oct. 6, 1936 A UNITED STATES MARKING oF METALLIC xTRUsIoNs or TUBULAR on soLInFoRM william Eckfora, olafielas, ranura-Wrexham North Wales, and William Carter, Buddicom Park, Chester, England, Vassignors to Goodlass Wall and Lead Industries England, a British company Limited, London,

Application December 11, 1934, Serial No. 757,040 In Great Britain January 9, V193.4

11 Claims.

Y section or metal but is herein described in ldetail or lead alloy composition.

It is an object of the present invention to provide an improved arrangement for marking upon extruded metallic sections when produced ina continuous manner in a press of the type provided with a hollow ram carryingV a die so'that metal extruded through the die passes through the hollow ram.v

` in reference to the manufacture of pipes' of lead Other objects of the invention .Willbe in part obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understoodv by persons skilled in the art, we have in the accompanying illustrative drawings and in the detailed following description based thereupon, set out several embodiments of thesame.

In these drawings:

Figure 1 is a detail horizontal section through the hollow ram of a metal extrusion press illustrating partly in section a holder'for a marking Wheel, all of which is mounted within the ram.

Figure 2 is another detail section through'the hollowram taken at right angles to Figure 1.

Figure 3 is a detail plan view of a portion of the the marking device within the ram. f Y

Figure 4 is asimilar view, having the plugof the retaining means for the marking device removed therefrom. e e j f.

` Figure 5 is a cross sectional jview through the ram illustrating the application of a plurality of marking devices, and

Figure 6 is a detail sectional view through the ram showing a further modification of the invention.

"Referring now more particularly to the drawings, and especially to Figures 1 to 4 inclusive:

1 I designates the ram of a pressjin the end of which therepis positioned a die l2 having a central bore 4 encompassing an extrusion 5 Vof lead in pipe form which moves in to and through the bore of the fram I, v

' The external surface or a ridge 3 on said pipe 5 in'its travel contacts with a rotary wheel VIi having letters of the alphabet or other markings 1 adaptedto impress like characters successively in a'continuousline on the pipe ridge in the movement 'of the pipe through the ram I.

The vsaid wheel 6 is revolubly mounted upon a ram kshowing in elevation the means for retaining pin @carried by biiurcated lugs 9fo'f a cylindricalV carrier Illprovided with feather keys Il'arranged to co-operate with keyways I2 constructed in a portion of a laterally positioned bore I3 formed in the wall of ram I and adapted to containcarrier I0; theother portion Aof said bore I3 is of largerdiameter and screw-threaded at I4 to receive 'a plug )I5 constructed with a recessed face I6 in the outermost part whereof are slots I'I into which a correspondingly shaped key may be conveniently entered to effect the entry and withdrawal of said plug I5 into or out of said bore I3. The inner face I5a is arranged to abut against the shoulder or step I8 formed by the reduced diameter of that part of bore I3 containing carrier I0 in such mannerV as to lock plug I5; and in said yinner face lthere is formed a recess I9 having a face I 9a adapted to abut against the adjacent end of a cylindrical collar or distancepiece 20 in such mannerv that when plug I5 is screwed against step I8 and set-screw 2| is turned, cylindrical 'carrier ID is drawn up against the other end of distance-piece 20 which is tightened against the inner face I9a of plug I5, and as the head of set-screw 2l is drawnagainst the recessed face I6 thereof rigidity of the marking Wheel 6 is ensured. v

The construction o1' bore I3 is such that upon the removal of plug I5 the whole of said marking device (vim- Wheel @cylindrical carrier I0 and distance-piece, 20) may be withdrawn through said bore I3 from the exterior ofthe ram I when it is'desired to mark extruded metallic sections of varying sizes necessitatingcorresponding adjust-y ment of the marking wheel 6 in relation to the particular size of extruded metal being dealt with, such regulation being effected by exchanging distance-'piece'z lfor a thinner or thicker pieceaccording to the die '2 used-re-inserting the marking device within ram I and securing same as hereinbefore described.

Referring now to the modification illustrated in Figure 5, the extrusion 5 is acted upon by three marking Wheels 6 which may be radially disposed at any desired angular relationship.

In the modification illustrated in Figure 6, a Wheel 6a but without marking characters thereon is provided in diametrical opposition to the marking wheel 6 and prevents possible displacement of the extruded metal during the marking operation.

From the foregoing, it will be understood that' articles or pipes 5 are formed to the design corresponding with that of the die 2 having ridges 3 formed upon the peripheries thereof upon which is applied suitable markings. The articles 5 may be providedvwith one ridge asis better.illustrated in Figure 2 of the drawings or2 they mayhave al plurality of ridges formed thereupon as is shown in Figure 5 oi the drawings. The marking wheels y`, 6 are to be forced into marking contact with these beV removable from the outside of the ram, and

ridges whereupon suitableV markings" vmay" be placed upon the articles. The radiallyextending bores or openings I3 are of a diameter sufficient f to receive the carriers I and the latterv are pro-z vided with the keys I I so as toVV prevent the rotation of the carriers within the openings I3. When the carriers are properly positioned within the openings of the ram, the marking wheels 6 will. align themselves with the ridges 3 formed upon the articles 5 and in order to retain the wheels E in marking contact with the ridges 3, the plug I5 is provided. According to the diameter or size of the articles 5, the collars orvspacing pieces 20 are arranged betweenothe plug I5 and thercarrier I0.

TheV plugs I5 are: readily accessible from the` exe. terior .of lthe ram in order that ythe marking. wheels maybe .readily adjusted with respect to. the ridges '3'of thearticles being formed and theV diameter of the wheels 6 together with that ofthe 'carrier I0 are smaller than that of the bore I3, whereupon the carrier and the marking wheels may be bodily removed through the bores I3 when it isdesiredto' replace or repair the same.r

` From the foregoing, itwill be obviousthat the carriers and the marking wheels mayfbe readily adjusted transversely tothe line vof movement of the extruded metal or articles 5 and such adjust-f ment of the carriers is effected by means accessible `from the exterior ofy the ram. VrI'he marking wheels may ,alsov be adjusted into the desired relationship to the surfaceof .the extruded metal or articles and may also be readily brought into proper relationship with the various si'zesfof extruded sections when the dies inthe ram are changed. Y

What we now claim as our invention and desire to secure by Letters Patent is:'-

l. In an extrusion press of the type' provided witha hollow ram carrying a die, a marking wheel adapted toact on the extruded metal coming from the die, said wheelbeing located 'inside' the hollow ram beyond the die,V acarrie'r removably disposed in the ram, said wheel being mounted within said: carrier, and means "accessible ,from the outside of said ram whereby'said carrier may be adjusted transversely to the line of movement of the extruded metal. i i

v2.' In an extrusion press of the type provided with a hollow ram carrying adie, a markirigwheel adapted to act on the extruded metal coming from the die, said wheel being located inside the hollow ram beyond the die, a carrier located ,in a bore extending lthrough lthe thickness of the wall of the hollow raml soas to' be removable from the outside of the ram andsaid wheel being rotatably mountedfupon saidcarrier; f

l `3. In an 'extrusion press of. the. type provided with a 'hollowfram carrying a die, a marking wheel adapted to act onfthe'extrudedmetal com-r,

-rier and said marking wheel may.V be adjusted transversely to the line of movement of the extruded metal.

4. In an extrusion press of the type provided with a hollow ram carrying a die, a marking device ,adapted to acton the extruded metal coming fromthe die, said marking device being located inside the hollow ram beyond the die, a carrier located in a bore extending through the thickness of the wall of the hollow ram so as to means accessible from the outside of said ram whereby said carrier and said marking device Vmay be adjusted'transversely to the line of movement of the extruded metal.

' 5; In an extrusion press of the type provided witha hollow ram carrying a die, a marking .wheel adapted to a'ct on the extruded metal comfing fromthe die, said wheel being located inside the hollow ram beyond the die, a carrier located in'abore extending through the thickness of the wallof the hollow ramso as to be removable from the outside of the ram, said wheel being mounted within `said carrier, a. plug provided -in said borey outside the carrier, means Afor retaining V4said., plug against. outwardthrust, anda .readilyreg placeable distance-piece located betvveen'said plug andcarrier.

, 6. In an` extrusion press of thev typeprovided with a hollow ram carrying a die, a *marking wheel adapted,v to act on the extruded metal coming from the die, said Wheel being located inside the hollow'ram beyond the die, a carrier located in a bore extending through the thickness of the wall of the hollow ram so aste be removablejrom the outside of the ram,'said`wheel beingmounted within said carrier, aplug provided insaid bore outside the carrier, means for retaining said plug against outward thrust, a'readily replaceable distance-pieceA located between said plug and car-Y- rier, and means whereby said carrier and marking wheel may be adjusted transversely to the line oi movement of the extruded metal.l `v Y '7. A machine for marking'articles formed. from metal comprising a rama die arranged within said ramY for producing a ridge upon vthearticles so formed, a marking device, means for adjustably supporting saidy marking device withinfsaidra'm, and meansaccessible from the, exterior of ysaid ram ior controlling said adjustably supporting means whereby said marking device may be brought in'marking 'contact with the ridge upon of. the ramfor adjusting said'supporting members.

within Ythe radially extending' openings V'cdlfsaid ram.. v '4 9. A machine for 'marking articles formedlrom. metal.,ComprisingI a ram having a central bore and a plurality of radially extending `openings, extending through Vthe ram and communicating1 with-the bore,thereofl,.a carrier. arranged within.

each opening, a marking wheel rotatably me],nfitegltv upon the inner end of each carrierandextend ing within thebore of the ram.- means foropei'a-v tively' connecting each carrierfwith thefgaigi $02.75.',

prevent the rotation thereof within its radially extending openings, means for radially adjusting each carrier within its opening of the ram, and locking means for retaining each carrier in its adjusted position.

l0. A machine for marking articles formed from metal comprising a ram having a central opening therein through which may pass the articles being formed, said ram having a radially extending opening formed therein communicating with the central opening thereof, a carrier comprising a cylindrical casing slidably mounted Within said radially extending opening, a marking wheel rotatably mounted upon one end of said carrier and positioned within the central opening of the ram, a plug detachably mounted Within said radially extending opening of said ram for controlling the movements of said carrier, a spacing 'collar arranged between said plug and said carrier and a set screw working in said carrier and having its head against the outer face of said plug for drawing said plug, collar and carrier into an adjustable but nrm relation with each other.

11. A machine for marking articles formed from metal comprising a ram having a central opening therein through which may pass in a continuous manner the articles being formed and a radially extending opening communicating with the central opening of said ram, a tubular 'carrier slidably mounted within said radially extending opening, keys carried by said carrier and cooperating With the ram to prevent the rotation of the carrier Within the radially extending opening thereof, a marking wheel rotatably mounted upon one end of said carrier, a plug detachably mounted Within said radially extending opening of said ram for controlling the movements of said carrier, a spacing collar arranged between said plug and said carrier and means for adjustably connecting said carrier and spacing collar to said plug for firmly holding said carrier in position.

WILLIAM ECKFORD. WILLIAM CARTER. 

